Hi DENNIS,
Yes the smoke switch is in the tender opposite of the volumn control switch.
From MTH site.
Priming the Smoke Unit When preparing to run this engine, add 15- 20 drops of smoke fluid through the smokestack. We recommend M.T.H. ProtoSmoke, Seuthe, LGB, or LVTS fluids. Do not overfill the unit or the fluid may leak out and coat the interior engine components. If you choose not to add the fluid (or have already added the fluid but choose to run smoke-free), turn off the smoke unit switch located on top of the tender (see Fig. 8). Failure either to add fluid to the unit or to turn it off may damage the smoke unit heating element and/or wicking material. Figure 8: Smoke Unit Switch Location
